You might be out of luck, in this case. The very recent Samsung-branded DVD burners are incapable of burning modern high-speed CD-Rs any slower than 16x without resulting in excessive C1 and/or C2 errors. And newer CD-R media, as a rule, burn poorly at 4x (with increased error count and very high jitter) and marginal at 8x. In other words, the only way that you could burn CD-Rs at 8x or 4x would be if your CD-R media has a media code (MID) whose maximum supported burn speed is slower than 16x.

[QUOTE=RJL65;2127683]You might be out of luck, in this case. The very recent Samsung-branded DVD burners are incapable of burning modern high-speed CD-Rs any slower than 16x without resulting in excessive C1 and/or C2 errors. And newer CD-R media, as a rule, burn poorly at 4x (with increased error count and very high jitter) and marginal at 8x. In other words, the only way that you could burn CD-Rs at 8x or 4x would be if your CD-R media has a media code (MID) whose maximum supported burn speed is slower than 16x.[/QUOTE]
Agreed.

So I’d say: don’t bother trying to worry about it…you already have one of the better recent CD burning drives; there’s no need to lower the speed.